Real owners rate these about evenly: 67% of 97 7Hz Salnotes Zero 2 owners recommend it, vs 66% of 106 for the Letshuoer S12 Pro.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“the Linsoul Zero:2 absolutely shock me at how good they sound driven by my old Samsung Note 9, no dongle, no nothing. I have weird small ear canals for a big guy, and these fit perfectly with the pink tips that came stock on them.”— @thedavemusgrave on YouTube
“is now quite content with the IEM.”— @bosansekali898 on YouTube
“the original Zero is one of the most annoying IEMs I've used when it comes to the tips.”— @sidesaladaudio on YouTube
“The S12 is brighter than the HeyDay (to my ears), so I would recommend a warmer amp source to really make them shine, and I would assume that they would pair great with tube amps”— GlenAppleton on Head-Fi
“I just love my S12 PRO.”— @fhreire on YouTube
“The bass on most planars including the S12PRO decays quickly. Gives the entire sound profile a lighter note weight and no amount of tip rolling will change that aspect (I went through 12 pairs).”— StolenServiceAnimal on Reddit
Real owners rate these about evenly: 67% of 97 7Hz Salnotes Zero 2 owners recommend it, vs 66% of 106 for the Letshuoer S12 Pro.
Owners point the 7Hz Salnotes Zero 2 at budget listeners wanting a fun, bass-forward all-rounder, and newcomers taking their first step into IEMs.
Owners point the Letshuoer S12 Pro at value-seekers wanting a technical planar under $200, and eDM, rock, and metal listeners who like energetic sound.
The most-cited downside of the 7Hz Salnotes Zero 2 is uncomfortable or poor fit, especially smaller ears. For the Letshuoer S12 Pro, it's bright, sometimes harsh treble.